baber/WOPTO huggingface dataset:
Patent GB-776869-A (GB)
Title: Improvements in clothes-line props
IPC: D06F53/04
Filed: 1954-06-02
Abstract: 776,869. Clothes-line props. FENWICK, C. E. May 2, 1955 [June 2, 1954], No. 16311/54. Class 52 (5). A clothes-line prop comprises telescopic tubular members 1, 2 securable in adjusted position by a pin 6 engaging aligned apertures in the members, the inner member having a line-receiving fork 3 and the lower end of the outer member being received in a moulded rubber cap 7 which forms an end stop for the inner member and an anti-slip foot when the prop is in use.
Patent GB-383645-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J1/20
Filed: 1931-06-04
Abstract: 383,645. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and FAIRBROTHER, J. A. V., 40, Rugby Road, Rugby. June 4, 1931, No. 16324. [Class 39 (i).] In an electron-emitting cathode, the cathode is surrounded bv a heat-shield in the form of a single strip of metal 8 wound in a flat spiral. The shield may be formed by winding on a mandrel, which is afterwards removed and the spiral allowed to spring apart. Supporting rods 9 may be welded to the shield, or supporting washers may be used. The spiral may be indented at intervals when wound, the indentations 10 after release serving to space apart consecutive turns. The invention is described as applied to a cathode consisting of a nickel cylinder with radial vanes surrounding a tungsten heating coil. The ends of the spiral may be closed by heat-shielding washers.
Patent GB-543553-A (GB)
Title: An improved punching tool
IPC: B21D28/34
Filed: 1940-11-11
Abstract: 543,553. Punching. JUNEERO, Ltd., and RAND, W. J. Nov. 11, 1940, No. 16331. [Class 83 (iv)] A tool for use in punching sheet or strip comprises a U-shaped frame c in which the punch a is guided at d, an elongated bush being fitted here if desired, and is formed with a smaller co-axial hole e that acts as die for the reduced end b of the punch. The shoulder b<SP>1</SP> acts as a stop. The tool is held by the frames and the punch is struck by a hammer. The ends of the frame in which the holes are formed are hardened.
Patent GB-1014364-A (GB)
Title: Improvements in or relating to spigot and socket joints
Inventor: WALTER HERMANN
IPC: F16L21/03
Filed: 1963-04-25
Abstract: 1,014,364. Spigot and socket joints; jointmaking packing. HALBERGERHUTTE G.m.b.H. April 25, 1963, No. 16349/63. Headings F2B and F2G. A spigot and socket joint comprises a socket member 2, the inner surface of which includes a generally cylindrical portion 6 followed by a portion 7 widening conically towards the base of the socket and a spigot member 1 having a generally cylindrical end portion. A sealing ring 3 is provided and comprises a retaining portion 4 and a sealing portion 5. The dimensions of the sealing ring 3 are such that after its insertion into the socket member the sealing portion 5 lies approximately against the transition from the cylindrical 6 to the conical 7 portions and after insertion of the spigot member into the socket member the sealing portion of the sealing ring is urged at least partly into engagement with the conically widening portion 7. The retaining portion is of hard rubber and the sealing portion of softer rubber. In a modification the retaining portion of the sealing ring engages the outer end face of the socket member and is formed with a cylindrical portion of the sealing portion material between the retaining portion and the sealing portion (Fig. 4, not shown). The dimensions of the co-operating parts of the joint are given as percentages of the maximum radial thickness of the sealing portion of the sealing ring.
Patent GB-173470-A (GB)
Title: Improvements connected with the manufacture of thin metal bodies having holes therein of small diameter
IPC: C25D1/08
Filed: 1921-06-14
Abstract: 173,470. Pechkranz, R. Dec. 28, 1920, [Convention date]. Moulds; preparing and treating surfaces.-A former on which perforated metal plates may be deposited comprises a copper or other metal plate in which recesses are made by photogravure or otherwise. The plate is covered with an insulating varnish or enamel which is afterwards removed from parts other than the recesses by pumice stone. A thin adherent layer of nickel or other metal is then deposited on the plate so as to extend partially over the recesses and to retain the insulating material therein. This layer is then oxidized or otherwise treated so as to render a subsequent deposit of metal on it detach. able. Such deposits have perforations corresponding to the recesses. Both sides of the former may be treated in the manner described. The diameter of the holes may be one-tenth of a millimetre.
Patent GB-638672-A (GB)
Title: Control for a constant-speed, variable-pitch propeller
IPC: B64C11/30
Filed: 1947-06-21
Abstract: 638,672. Fluid-pressure servomotorcontrol systems. ARMSTRONG SIDDELEY MOTORS, Ltd., SLATTER, B. H., and DAISH, T. G. June 21, 1947, No. 16457. [Class 135] [Also in Groups XXVI and XXXIII] The datum changing mechanism of a constant-speed variable pitch propeller unit driven by an internal combustion -gas turbine unit is connected to the pilot's throttle control through a time delay device so that when the throttle control is moved rapidly to increase the fuel supply, the datum setting is initially increased at a relatively low rate, then at a relatively high rate and finally at a relatively low rate whereby the selected speed and power are assumed rapidly without undesirable fluctuations. As shown, the time delay device comprises a vane type of hydraulic servomotor having a vane 12 integral with a sleeve 13, 13x fast with a member 45, Fig. 3, having a cam slot 46 engaging a roller 47 on a bell-crank 55 connected to the datum changing mechanism. The sleeve portion 13 has ports 22a, 22b open to chambers 11a, 11b, and surrounds a two-part valve 14, 14x. The two parts of both the valve and the sleeve are shown separate in Fig. 1 but actually are co-axial and integral.and are supplied from a common supply 16, through throttle valves 17, 28. The valve part 14 has four lands such as 21a, 21b separating two valve chambers 23, 24 from an exhaust chamber 32 communicating with a central exhaust passage 33. The chambers 23, 24 are supplied from an annular groove at the rear of the valve and co-planar with ports 20a, 20b and an annular groove 18 in the sleeve part 13. The valve part 14x has two lands 29a, 29b some 10 degrees wider than the lands 21a, 21b, and two valve chambers 23x, 24x. Ports 26a, 26b in the sleeve part 13x are maintained in communication with the supply passages 27a, 27b by arcuate grooves 31a, 31b. Initial movement of the valve 14, 14x by an arm 42, Fig. 3, fast with the pilot's throttle lever opens one of the ports 22a, 22b to the supply pressure and the other to exhaust. The subsequent movement of the sleeve 13 opens up an increased supply of pressure fluid through one of the chambers 23x, 24x to the corresponding chamber 23 or 24 and thence through the port 22a, or 22b to one of the chambers 11a, 11b. The increased supply of pressure fluid causes the vane 12 and the sleeve 13, 13x to move more rapidly so that the ports 26a, 26b catch up the lands 29a, 29b and the additional supply of pressure fluid is cut off. Finally the vane proceeds at reduced speed until the ports 22a, 22b catch up the lands 21a, 21b when the vane stops in its new position. of adjustment. The arm 42 is coupled to the fuel valve through mechanism including a pivoted arm 49 carrying a member 50 with a cam slot 51.
Patent GB-834540-A (GB)
Title: Improvements relating to the irradiation of substances by electronic bombardment
Inventor: CROWLEY-MILLING MICHAEL CROWLE
IPC: H01J33/00
Filed: 1955-06-08
Abstract: 834,540. Electron beam focusing apparatus. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. July 5, 1956 [June 8, 1955], No. 16482/55. Class 39(1). Electron beam irradiation apparatus for the treatment of substances by electronic bombardment includes beam-shaping apparatus comprising an assembly of magnetic poles disposed about the beam axis, with their axes radial to it, and arranged to produce magnetic fields such as to elongate the cross-section of the beam along one lateral axis and to reduce or leave unaltered the cross-section along the other lateral axis so that material which is moved continuously across the path of the beam is irradiated more evenly. The magnet assembly may comprise an array of permanent magnets or, as shown, polepieces 1 attached to poles 2 supported by a yoke 3, the coils 4 on the poles being connected in such a way as to produce alternate polarities at the polepieces. The cross-section of the pole-pieces takes the shape of a hyperbolic or circular segment so that the field strength variation with distance from the beam axis is approximately linear. After passing through the assembly the beam is convergent in the x plane and divergent in the y plane but beyond a certain point the beam becomes divergent in the x plane thereby restricting the amount of spread obtainable in the y plane. However, if the length of the magnet assembly is suitably chosen the beam emerges parallel and unaltered in direction in the x plane. A similar effect can be obtained by the use of two or more magnet assemblies when these are arranged a suitable distance apart with the same orientation. If the incident electron beam is not of uniform current density over the cross-section it may be desirable to have a non-linear variation of transverse magnetic field to produce a uniform current density in the shaped beam. Specification 764,337 is referred to.
Patent GB-612698-A (GB)
Title: Kaleidoscopes
IPC: G02B27/08
Filed: 1946-05-30
Abstract: 612,698. Kaleidoscopes. MARX & CO., Ltd., L. (Marx & Co., Inc., L.). May 30, 1946, No. 16515. [Class 97 (i)] The casing 1 of a kaleidoscope which is provided in the usual manner with two inclined mirrors is apertured at 12 and is provided at 5 with a seating for a transparent disc 6 separated by an annulus 10 from a translucent disc 9. Between the discs are placed coloured glass pieces &c., while the disc 9 is held in place by a cap 4, which is detachably mounted on the casing by ribs which frictionally engage cam surfaces formed on the outer surface of the end 3 thereof.
Patent GB-981688-A (GB)
Title: Means for use in supporting wire fences
IPC: E04H17/08
Filed: 1962-05-01
Abstract: 981,688. Fencing. C. GOODALL, and M. GOODALL. April 24, 1963 [May 1, 1962; Aug. 21, 1962], Nos. 16578/62 and 32035/62. Heading E1B. Wire fencing is supported by posts 10 of steel channel section, each post being provided with pivotally connected metal stays 11 secured to the ground by spikes 15. The stays diverge from the plane of the fence and when the post is intermediate with length of the fence it is slotted for the wires and the stays are pivotally connected to the post in separate groups. As shown, an end post 10 is resiliently connected to the wires 13 by springs 20, and is anchored to the ground by a stay 17 and device 18. The post may be provided with stays 11 on one side only, the other side may then support a gate. In each embodiment the post has a blunt end which rests on the ground without being embedded into it. Specification 981,689 is referred to.
Patent GB-1223014-A (GB)
Title: Bipolar plates for nickel-zinc accumulators
IPC: H01M4/64
Filed: 1968-04-05
Abstract: 1,223,014. Bipolar electrodes. INTERNATIONAL NICKEL Ltd. 27 Feb., 1969 [5 April, 1968], No. 16585/68. Addition to 1,212,344. Heading H1B. A bipolar electrode for a Ni-Zn accumulator comprises as negative electrode, a pack of electrolytically deposited, expanded, metal grids united and in electrical contact at their edges, each carrying a layer of Zn sponge, as positive electrode a pack of electrolytically deposited expanded nickel grids united and in electrical contact at their edges each carrying a layer of porous nickel at least partly oxidized to nickel oxide and between the two a conductive, electrolyte impermeable barrier connected to the electrodes over their entire areas. The negative grids may be of nickel or Cd-plated or Znplated copper, iron or steel. The barrier may be formed by joining a nickel sheet to the positive pack, joining a sheet of nickel or of cadmium or zinc-plated copper to the negative pack, plating the back of each sheet with spongy copper or cadmium and spot welding them together. An accumulator may be made by stacking the tripolar electrodes with mono-polar end electrodes, separators and distance-pieces, sealing up the edges of the stack with fibreglass and drilling vents in the sides. The separators may be microporous P.V.C. or zirconyl phosphate and the electrolyte may be potassium borate.
Patent GB-914846-A (GB)
Title: Method for fixing knots in yarns and device therefor
IPC: D06M11/79
Filed: 1960-05-11
Abstract: 914,846. Securing knots in yarns. NEDERLANDSE ORGANISATIE VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID, HANDEL EN VERKEER. May 11, 1960 [May 14, 1959], No 16652/60. Class 142 (1). Yarn ends, for example broken warp threads in looms, are joined together by tying a weaver's or other knot and applying an aqueous solution of a colloidal dispersion of amorphous silicic acid
Patent GB-742553-A (GB)
Title: Improvements in or relating to process for producing polyhydric alcohols
Filed: 1953-06-17
Abstract: A sorbitol-mannitol mixture is produced by hydrolysing sucrose in aqueous solution, interrupting the hydrolysis when the specific rotation of the solution first reaches the value corresponding to a selected degree of hydrolysis within the range of 95-99 per cent, preferably 97-98 per cent, complete, adjusting the pH to between 6 and 8, catalytically hydrogenating in a continuous system at a temperature of 140 DEG  to 170 DEG  C. and a pressure of 1000 to 2000 p.s.i. until the reducing sugar content is less than 0.2 per cent based on dissolved solids, and separating the hydrogenation catalyst from the resulting solution.  The initial sucrose content may be 25 to 75 per cent, preferably 40 to 60 per cent by weight.  The hydrolysis is preferably effected by heating with a dilute acid, e.g. sulphuric, hydrochloric, phosphoric, acetic, tartaric or oxalic acids or with potassium bisulphate, at a pH below 3, preferably between 1 and 2, and a temperature in the range of 45 DEG  to 70 DEG  C., although any temperature from room temperature to 90 DEG  C. is suitable.  The inversion is checked by adding alkali.  The hydrogenation may be effected by passing a slurry of supported, reduced catalyst, containing 0.5 to 5 per cent of nickel, in the neutralized, hydrolysed sugar solution, and hydrogen under pressure upward through a vertical reactor or a plurality of reactors in series. Preferably a large excess of hydrogen is used with a linear velocity many times that of the slurry.  Detailed examples are given and the results are compared with those obtained when the extent of hydrolysis lies outside the specified range.
Patent GB-922535-A (GB)
Title: Improved lock nut
IPC: F16B39/36
Filed: 1959-05-15
Abstract: 922,535. Making self-locking nuts. PENN ENGINEERING & MANUFACTURING CORPORATION. May 15, 1959 [Feb. 13, 1959], No. 16782/59. Class 83 (2). [Also in Group XXV] A nut comprising a body 12, Fig. 1, with integral extension 13 divided by diametrically - aligned slots 22 into symmetrical segments 14, 15, has the segments deformed towards each other by a die 40, Fig. 4, to provide a locking action. At the juncture of extension and body, the extension is formed with an annular undercut 25 and recess 18, 19 lying parallel to the slots, so that the segments can bend more readily between the slots than adjacent the slots. In a modification, the slots extend into body 12 and may have arcuate bottoms.
Patent GB-345885-A (GB)
IPC: A21D15/04
Filed: 1930-05-30
Abstract: 345,885. Preserving bread. MEYER, C., Sonnenheim, Malters, Lucerne, Switzerland. May 30, 1930, No. 16806. Convention date, May 31, 1929. [Class 49.] A method of packing and preserving bread in a sterile condition comprises baking the bread in sheet iron containers 1 having an aperture 4 in the base 3 and a loose bottom 5, and transferring it into preheated tin plate dispatch receptacles 2 by inverting the container 1 into the receptacle 2 as shown, and pressing upon the plate 5 with a device 7 while the container 1 is withdrawn. The dispatch receptacles are hermetically sealed and again placed in the oven for further baking. Additions of meat, milk products or fruit may be made to the bread. The transfer takes place at a temperature of at least 105‹ C., the dispatch receptacles having been heated to 110‹ C.
Patent GB-982094-A (GB)
Title: Process and apparatus for casting a liquid film from plastic dispersions, solutions, or emulsions, especially on metal sheets or strips
IPC: B05C5/00
Filed: 1961-05-09
Abstract: 982,094. Coating apparatus. STAHLUND WALZWERKE RASSELSTEIN / ANDERNACH A.G. May 9, 1961 [May 9, 1960], No. 16858. Heading B2B. [Also in Divisions B5 and D1] A method of coating metal sheets 9 with a solution, emulsion or dispersion of a plastic material, e.g. polythene in an organic solvent, comprises forming a liquid film of the solution &c. on a rotating roller 3, detaching the film from the roller 3 at 4, and delivering the film down an inclined plate 5 from which the film drops on to the sheet as the sheet is moved past the lower end of the plate 5. The liquid is circulated through a trough 1 by a pump driven by an adjustable motor 18 which also drives the roller 3 which may dip in the trough or which may contact a driven transfer roller 2. The plate 5, which has three portions 5, 5a, 5b, and terminates at 7, has side flanges, an inwardly projecting wire at each bottom corner, see Fig. 3 (not shown), and has a flexible steel blade at its upper end to assist detachment of the film. Specification 860,313 is referred to.
Patent GB-1521876-A (GB)
Title: Pressure transducers
IPC: H01L29/84
Filed: 1977-04-22
Abstract: 1521876 Pressure transducers SIEMENS AG 22 April 1977 [23 April 1976] 16929/77 Heading G1N [ Also in Division H1] A pressure transducer comprises strain gauge resistors 6, 8 Fig. 1 on the upper surface of a diaphragm 2 with thickened rim 10 and similar resistors on the under surface, the diaphragm being axially displaced when a pressure difference is applied to the surfaces. The assembly includes take-up members 12, 14 on either side of the diaphragm, fixed by fusing glass layers 20, 22, which prevent excessive displacement beyond the elastic limit. The diaphragm 2 is made of silicon with the resistors 6, 8 formed by diffusion. The take-up members 12, 14 also made of silicon, are formed with recesses 16, 18 to produce a pressure chamber on either side of the diaphragm, connected by grooves 28, 30, 32, 34 to external fluid pressure sources, with further grooves locating the strain gauge resistor leads.
Patent GB-1505034-A (GB)
Title: Piezoelectric switches
IPC: G06F3/02
Filed: 1976-04-27
Abstract: 1505034 Piezo-electric generators KUREHA KAGAKU KOGYO KK 27 April 1976 [28 April 1975] 16948/76 Heading H2A A piezo-electric generator comprises a piezoelectric thermoplastic film 2 with electrodes 3, 3<SP>1</SP> on its opposed surfaces, and a generator 4 of mechanical vibrations which vibrations are transmitted to the thermoplastic film to cause it to generate an oscillating voltage across the electrodes. The vibration generator 4 and the film may be mutually movable so as to come into direct contact, with or without the interposition of a protector 5 to prevent damage to electrode 3<SP>1</SP>. In a modification, Fig. 2 (not shown) the film and the vibration generator are both fixed and an intermediate member (8) is movable into and out of the space between them, the intermediate member transmitting the vibrations to the film.
Patent GB-1260222-A (GB)
Title: Improvements in or relating to methods of producing hairpieces and a product thereof
Inventor: TAYLOR GLEN HEARST
IPC: A41G3/00
Filed: 1969-04-01
Abstract: 1,260,222. Wigs. G. H. TAYLOR. April 1, 1969 [Oct. 9, 1968; Dec.23, 1968], No. 17055/69. Heading A4U. A method of embedding hair in plastics material comprises clamping strands of hair 28 between a plurality of dividers 27 so that one end of each strand of hair 28 protrudes beyond the same end of the dividers 27, clipping the protruding hair ends to a uniform length, immersing them in a pool 29 of liquid plastics material contained in a trough 21, curing the liquid plastics material to a flexible cohesive skin, removing the cured plastics material having the hair ends embedded therein from the trough 21 and removing the dividers from between the hair strands. The dividers 27 may be spaced from the upper surface of the pool of liquid plastics material by a distance which may be one-eighth of an inch so that there is an air space 31 between the dividers and said pool.
Patent GB-1212104-A (GB)
Title: Improvements in presses
Inventor: LANDA TORSTEIN
IPC: B30B5/02
Filed: 1968-04-10
Abstract: 1,212,104. Hydraulic presses. ALLMNNA SVENSKA ELEKTRISKA A.B. 10 April, 1968 [14 April, 1967], No. 17182/68. Heading B5F. [Also in Division B3] A press comprises two yokes 1 and at least two spacers 3 having curved outer surfaces to provide a frame, around which is wound a sheath of pre-stressed wire or strip material 10 to absorb the forces. Pressure medium is introduced through channels 21 in a holder 18 or in the upper yoke 1 above an elastomeric pad 20 which presses a sheet metal workpiece against a forming block positioned on a movable carriage 17. The spacers 3 are longer than the distance between the yokes 1 and may be wedge shaped to form a press having an oval cross-section (Fig. 3, not shown). The steel sheath 10 is wound under tension between flanges (11, 14) on the yokes and spacers. A number of press units may be joined together to form a longer operating space.
Patent GB-723764-A (GB)
Title: Improvements in or relating to lubrication and similar couplings
IPC: F16N21/04
Filed: 1950-07-10
Abstract: 723,764. Grease-gun couplings. NEUMAN, C. J. May 25, 1951. [July 10, 1950; Aug. 17, 1950] Nos. 17251/50 and 20475/50. Divided out of 714,147. Class 99 (1). In a device such as a grease gun comprising a coupling member a adapted to receive a lubricating inlet member such as a nipple, the end face n of the member a is flat and is roughened, e.g. it has a knurled surface o, by means of which dirt can be scraped off the nipple. For the same purpose, sharpened edges are provided on the face n and at the junction between the face n and the sides of a raised boss r. A knurled surface p may be provided for gripping by the operator. A seating f for the nipple is depressed against the action of a spring g and segmental jaws are separated when the nipple is inserted in the member a. Pressure of grease against a piston d forces the jaws against a cone k and so inwardly to grip the nipple. m is a non-return valve. Specification 568,945 is referred to in the Provisional Specifications.
Patent GB-315964-A (GB)
Title: Improvements in or relating to frame or loop aerials for radio sets
IPC: H01Q7/02
Filed: 1928-06-14
Abstract: 315,964. Lever (Trix), Ltd., E. J., and Lyons, D. A. June 14, 1928. Receiving sets; aerials. - A portable frame aerial a is wound around the hinged halves b, c of a rigid box-like support, which can be folded into compact form when the aerial is not in use. The number of sections b, c mav be increased. One section may hold the component parts of a receiving set.
Patent GB-860772-A (GB)
Title: Improvements in electric blasting initiators
IPC: C06B25/04
Filed: 1959-05-21
Abstract: Picryl sulphone for use in an electric blasting initiator is prepared in a two-step process from picryl chloride.  In the first step picryl chloride is reacted with a source of sulphur, such as sodium thiosulphate, sodium disulphide, or thiourea, to produce picryl sulphide.  The picryl sulphide is then oxidized by a nitric acidchromic acid mixture to produce a pale yellow precipitate. The precipitate is then filtrated and yields picryl sulphone.